Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 173 insertions, 0 deletions

diff --git a/Source/WebCore/fileapi/FileSystemCallbacks.h b/Source/WebCore/fileapi/FileSystemCallbacks.h
new file mode 100644
index 000000000..7f68625ac
--- /dev/null
+++ b/Source/WebCore/fileapi/FileSystemCallbacks.h
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FileSystemCallbacks_h
+#define FileSystemCallbacks_h
+
+#if ENABLE(FILE_SYSTEM)
+
+#include "AsyncFileSystemCallbacks.h"
+#include "PlatformString.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class AsyncFileWriter;
+class DOMFileSystemBase;
+class DirectoryReaderBase;
+class EntriesCallback;
+class EntryArray;
+class EntryCallback;
+class ErrorCallback;
+struct FileMetadata;
+class FileSystemCallback;
+class FileWriterBase;
+class FileWriterBaseCallback;
+class MetadataCallback;
+class ScriptExecutionContext;
+class VoidCallback;
+
+class FileSystemCallbacksBase : public AsyncFileSystemCallbacks {
+public:
+    virtual ~FileSystemCallbacksBase();
+
+    // For EntryCallbacks and VoidCallbacks.
+    virtual void didSucceed();
+
+    // For FileSystemCallbacks.
+    virtual void didOpenFileSystem(const String& name, PassOwnPtr<AsyncFileSystem>);
+
+    // For MetadataCallbacks.
+    virtual void didReadMetadata(const FileMetadata&);
+
+    // For EntriesCallbacks. didReadDirectoryEntry is called each time the API reads an entry, and didReadDirectoryDone is called when a chunk of entries have been read (i.e. good time to call back to the application).  If hasMore is true there can be more chunks.
+    virtual void didReadDirectoryEntry(const String& name, bool isDirectory);
+    virtual void didReadDirectoryEntries(bool hasMore);
+
+    // For createFileWriter.
+    virtual void didCreateFileWriter(PassOwnPtr<AsyncFileWriter>, long long length);
+
+    // For ErrorCallback.
+    virtual void didFail(int code);
+
+protected:
+    FileSystemCallbacksBase(PassRefPtr<ErrorCallback> errorCallback);
+    RefPtr<ErrorCallback> m_errorCallback;
+};
+
+// Subclasses ----------------------------------------------------------------
+
+class EntryCallbacks : public FileSystemCallbacksBase {
+public:
+    static PassOwnPtr<EntryCallbacks> create(PassRefPtr<EntryCallback>, PassRefPtr<ErrorCallback>, PassRefPtr<DOMFileSystemBase>, const String& expectedPath, bool isDirectory);
+    virtual void didSucceed();
+
+private:
+    EntryCallbacks(PassRefPtr<EntryCallback>, PassRefPtr<ErrorCallback>, PassRefPtr<DOMFileSystemBase>, const String& expectedPath, bool isDirectory);
+    RefPtr<EntryCallback> m_successCallback;
+    RefPtr<DOMFileSystemBase> m_fileSystem;
+    String m_expectedPath;
+    bool m_isDirectory;
+};
+
+class EntriesCallbacks : public FileSystemCallbacksBase {
+public:
+    static PassOwnPtr<EntriesCallbacks> create(PassRefPtr<EntriesCallback>, PassRefPtr<ErrorCallback>, PassRefPtr<DirectoryReaderBase>, const String& basePath);
+    virtual void didReadDirectoryEntry(const String& name, bool isDirectory);
+    virtual void didReadDirectoryEntries(bool hasMore);
+
+private:
+    EntriesCallbacks(PassRefPtr<EntriesCallback>, PassRefPtr<ErrorCallback>, PassRefPtr<DirectoryReaderBase>, const String& basePath);
+    RefPtr<EntriesCallback> m_successCallback;
+    RefPtr<DirectoryReaderBase> m_directoryReader;
+    String m_basePath;
+    RefPtr<EntryArray> m_entries;
+};
+
+class FileSystemCallbacks : public FileSystemCallbacksBase {
+public:
+    static PassOwnPtr<FileSystemCallbacks> create(PassRefPtr<FileSystemCallback>, PassRefPtr<ErrorCallback>, ScriptExecutionContext*);
+    virtual void didOpenFileSystem(const String& name, PassOwnPtr<AsyncFileSystem>);
+
+private:
+    FileSystemCallbacks(PassRefPtr<FileSystemCallback>, PassRefPtr<ErrorCallback>, ScriptExecutionContext*);
+    RefPtr<FileSystemCallback> m_successCallback;
+    RefPtr<ScriptExecutionContext> m_scriptExecutionContext;
+};
+
+class ResolveURICallbacks : public FileSystemCallbacksBase {
+public:
+    static PassOwnPtr<ResolveURICallbacks> create(PassRefPtr<EntryCallback>, PassRefPtr<ErrorCallback>, ScriptExecutionContext*, const String& filePath);
+    virtual void didOpenFileSystem(const String& name, PassOwnPtr<AsyncFileSystem>);
+
+private:
+    ResolveURICallbacks(PassRefPtr<EntryCallback>, PassRefPtr<ErrorCallback>, ScriptExecutionContext*, const String& filePath);
+    RefPtr<EntryCallback> m_successCallback;
+    RefPtr<ScriptExecutionContext> m_scriptExecutionContext;
+    String m_filePath;
+};
+
+class MetadataCallbacks : public FileSystemCallbacksBase {
+public:
+    static PassOwnPtr<MetadataCallbacks> create(PassRefPtr<MetadataCallback>, PassRefPtr<ErrorCallback>);
+    virtual void didReadMetadata(const FileMetadata&);
+
+private:
+    MetadataCallbacks(PassRefPtr<MetadataCallback>, PassRefPtr<ErrorCallback>);
+    RefPtr<MetadataCallback> m_successCallback;
+};
+
+class FileWriterBaseCallbacks : public FileSystemCallbacksBase {
+public:
+    static PassOwnPtr<FileWriterBaseCallbacks> create(PassRefPtr<FileWriterBase>, PassRefPtr<FileWriterBaseCallback>, PassRefPtr<ErrorCallback>);
+    virtual void didCreateFileWriter(PassOwnPtr<AsyncFileWriter>, long long length);
+
+private:
+    FileWriterBaseCallbacks(PassRefPtr<FileWriterBase>, PassRefPtr<FileWriterBaseCallback>, PassRefPtr<ErrorCallback>);
+    RefPtr<FileWriterBase> m_fileWriter;
+    RefPtr<FileWriterBaseCallback> m_successCallback;
+};
+
+class VoidCallbacks : public FileSystemCallbacksBase {
+public:
+    static PassOwnPtr<VoidCallbacks> create(PassRefPtr<VoidCallback>, PassRefPtr<ErrorCallback>);
+    virtual void didSucceed();
+
+private:
+    VoidCallbacks(PassRefPtr<VoidCallback>, PassRefPtr<ErrorCallback>);
+    RefPtr<VoidCallback> m_successCallback;
+};
+
+} // namespace
+
+#endif // ENABLE(FILE_SYSTEM)
+
+#endif // FileSystemCallbacks_h